.container{max-width:800px;margin:0 auto;padding:20px;text-align:center}.buttons{display:flex;justify-content:center;gap:10px;margin-top:20px}.button{padding:10px 20px;background-color:#0070f3;color:#fff;text-decoration:none;border-radius:5px}.button:hover{background-color:#0053b3}.exerciseExplanation{margin-top:20px;font-size:1.5rem;line-height:1.6}.exerciseExplanation2{margin-top:20px;font-size:1.4rem;line-height:1.9}